Home / 8,749-18,665

Finding the Third Proportional to 8,749 and 18,665

Calculator

Solution

The third proportional to 8,749 and 18,665 is: 39,819.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749 : 18,665 = 18,665 : x
  2. Step 2: Convert to fraction form
    8,749/18,665 = 18,665/x
  3. Step 3: Cross multiply
    8,749x = 18,665 × 18,665
  4. Step 4: Simplify right side
    8,749x = 348,382,225
  5. Step 5: Solve for x
    x = 348,382,225/8,749
  6. Step 6: Final answer
    x = 39,819.66

Related Problems

Find third proportional to 4,374.50 and 9,332.50
Half scale
Find third proportional to 17,498 and 37,330
Double scale
Find third proportional to 8,751 and 18,669
Similar ratio
Find third proportional to 13,123.50 and 27,997.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.